2642857145 has 32 divisors (see below), whose sum is σ = 3496413600. Its totient is φ = 1908781056.

The previous prime is 2642857123. The next prime is 2642857177. The reversal of 2642857145 is 5417582462.

It can be written as a sum of positive squares in 16 ways, for example, as 380523049 + 2262334096 = 19507^2 + 47564^2 .

It is a cyclic number.

It is not a de Polignac number, because 2642857145 - 2⁶ = 2642857081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2642857096 and 2642857105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 383591 + ... + 390419.

It is an arithmetic number, because the mean of its divisors is an integer number (109262925).

Almost surely, 2^2642857145 is an apocalyptic number.

It is an amenable number.

2642857145 is a deficient number, since it is larger than the sum of its proper divisors (853556455).

2642857145 is a wasteful number, since it uses less digits than its factorization.

2642857145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7037.

The product of its digits is 537600, while the sum is 44.

The square root of 2642857145 is about 51408.7263506888. The cubic root of 2642857145 is about 1382.5830541530.

The spelling of 2642857145 in words is "two billion, six hundred forty-two million, eight hundred fifty-seven thousand, one hundred forty-five".